package main

import (
	"fmt"
)

func main() {
	// 浮点数
	var num1 float32 = 3.15
	fmt.Println(num1)
	var num2 float32 = -3.15
	fmt.Println(num2)
	var num3 float64 = 314e+2
	fmt.Println(num3)
}
